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Cerebral necrosis following radiotherapy of extracranial neoplasms

Journal Article · · Ann. Neurol.; (United States)
We have examined 6 patients with delayed cerebral necrosis following irradiation of extracranial neoplasms. Four of the 6 patients received 1760 rets (or less) tumor dose. The initial symptoms attributable to radiation necrosis appeared 4 to 31 months after irradiation and were those of a focal supratentorial mass. Cerebral angiography delineated an avascular frontal or temporal lesion in all 6 patients; in 1 case a magnification study revealed narrowing, irregularity, and occlusion of small cortical vessels. Four of our 6 patients underwent craniotomy with partial or complete surgical extirpation of necrotic brain tissue. Two operated patients are alive and without disabling neurological symptoms 30 and 25 months, respectively, after the operation. The characteristic neuropathological features of delayed radiation necrosis of brain suggest that vascular injury rather than neuronal or glial damage is of primary pathogenetic significance.
Research Organization:
Memorial Sloan-Kettering Cancer Center, New York, NY
OSTI ID:
5795498
Journal Information:
Ann. Neurol.; (United States), Journal Name: Ann. Neurol.; (United States) Vol. 1:4; ISSN ANNED
Country of Publication:
United States
Language:
English